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Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican
The Hubble Space Telescope The Hubble Space Telescope
The Local Group The Local Group
Relationships and dates divergence of living primate group based on molecular and DNA comparisons. Relationships and dates divergence of living primate group based on molecular and DNA comparisons.
An offset screwdriver is used to install or remove fasteners that do not have enough space above to ... An offset screwdriver is used to install or remove fasteners that do not have enough space above to ...
International space station International space station
Video: Renin/Angiotensin (water gain from urine & Na ion and water reabsorption)

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